Spherical spirit level



FIG. 1 is a top plan view of a spherical spirit level showing our new design;

FIG. 2 is a left end elevational view thereof the right end being a mirror image thereto;

FIG. 3 is a bottom and side perspective view thereof, the opposite side being identical thereto.

The opposite side and opposite end are identical respectively to the side and end shown in FIG. 3. 

The ornamental design for a spherical spirit level, as shown and described. 